Multi-round Dialogue Translation via Semantic Intermediary

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Solution Overview

Problem

Existing human-machine dialogue technologies face challenges in achieving correct and smooth multi-round conversations in low-resource languages due to insufficient multi-round conversation corpora and semantic incongruity caused by machine translation.

Innovation Solution

A method and computing device that utilize a multi-round conversation generation model trained on high-resource languages, combined with specific translation processes that incorporate historical dialogue content to enhance semantic and contextual coherence in low-resource languages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If machine translation is used to translate dialogue between high-resource and low-resource languages, then cross-lingual dialogue capability is improved, but semantic incongruity and loss of contextual coherence occur

Engineering Contradiction:
Improvecross-lingual dialogue capabilityVSAvoidsemantic coherence
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent introduces an intermediate representation layer that captures semantic meaning independently of language. The encoder transforms source language input into language-independent semantic representations, which then guide the decoder to generate target language output. This intermediary semantic layer prevents direct translation errors by decoupling semantic understanding from language-specific expressions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional machine translation mechanisms with a neural sequence-to-sequence model that uses attention mechanisms and language-independent representations. Instead of relying on rule-based or statistical translation methods, the system uses deep learning to capture contextual semantics and generate linguistically appropriate outputs, thereby preserving semantic coherence across language boundaries.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If multi-round conversation generation models are trained on low-resource languages, then dialogue quality in low-resource languages is improved, but insufficient training corpora limit model performance

Engineering Contradiction:
Improvedialogue qualityVSAvoidtraining corpus size
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent creates a universal dialogue model architecture that can be trained on high-resource language corpora and then applied to low-resource languages through translation. The language-independent semantic representations allow the model to learn general dialogue patterns from abundant high-resource data, which then benefit low-resource language applications without requiring large amounts of language-specific training data.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent changes the parameter space by introducing language-independent semantic embeddings and attention mechanisms that focus on contextual meaning rather than surface-level linguistic features. This parameter transformation allows the model to generalize across languages effectively, achieving good performance on low-resource languages by leveraging patterns learned from high-resource languages.

Inventive Principle:
Principle #35Parameter changes

3Speed

If direct translation of multi-round conversations is performed, then translation speed is improved, but contextual coherence and semantic consistency across multiple turns are lost

Engineering Contradiction:
Improvetranslation speedVSAvoidcontextual coherence
Core Design Contradiction:
SpeedVSStability of the object's composition

Solution Approach 1:

The patent maintains continuous contextual understanding across multiple dialogue turns by incorporating attention mechanisms that weigh the importance of different historical utterances. The model processes the entire conversation history continuously, updating semantic representations at each turn to reflect the evolving context, thereby preserving coherence while enabling efficient generation.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The patent implements feedback mechanisms where the generated output at each turn is fed back into the contextual representation for subsequent turns. This allows the model to maintain consistency with previous exchanges and adjust its responses based on the evolving dialogue state, ensuring semantic coherence across multiple turns while maintaining translation efficiency.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12282747B2Method for human-machine dialogue, computing device and computer-readable storage medium
Publication Date: 2025.04.22 UBTECH ROBOTICS CORP LTD
  • US12282747B2 patent drawing
  • US12282747B2 patent drawing
  • US12282747B2 patent drawing

AI summary

A method includes: acquiring an input sentence in a first language in a current round of conversation; translating the input sentence in the first language to obtain an input sentence in a second language, according to dialogue contents in the first language and dialogue contents in the second language that have a mutual translation relationship with the dialogue contents in the first language in historical rounds of conversation; invoking a multi-round conversation generation model to parse the input sentence in the second language in the current round of conversation to generate an output sentence in the second language in the current round of conversation; translating the output sentence in the second language in the current round of conversation to obtain at least one candidate result in the first language; and determining an output sentence in the first language from the at least one candidate result in the first language.